﻿using System;
using System.Collections.Specialized;
using System.ComponentModel.DataAnnotations;
using System.Web.DynamicData;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Enumeration_EditField : System.Web.DynamicData.FieldTemplateUserControl {
    private Type _enumType;

    protected void Page_Load(object sender, EventArgs e) {
        DropDownList1.ToolTip = Column.Description;

        if (DropDownList1.Items.Count == 0) {
            if (Mode == DataBoundControlMode.Insert || !Column.IsRequired) {
                DropDownList1.Items.Add(new ListItem("[Not Set]", String.Empty));
            }
            PopulateListControl(DropDownList1);
        }

        SetUpValidator(RequiredFieldValidator1);
        SetUpValidator(DynamicValidator1);
    }

    protected override void OnDataBinding(EventArgs e) {
        base.OnDataBinding(e);

        if (Mode == DataBoundControlMode.Edit && FieldValue != null) {
            string selectedValueString = GetSelectedValueString();
            ListItem item = DropDownList1.Items.FindByValue(selectedValueString);
            if (item != null) {
                DropDownList1.SelectedValue = selectedValueString;
            }
        }
    }

    private Type EnumType {
        get {
            if (_enumType == null) {
                _enumType = Column.GetEnumType();
            }
            return _enumType;
        }
    }

    protected override void ExtractValues(IOrderedDictionary dictionary) {
        string value = DropDownList1.SelectedValue;
        if (value == String.Empty) {
            value = null;
        }
        dictionary[Column.Name] = ConvertEditedValue(value);
    }

    public override Control DataControl {
        get {
            return DropDownList1;
        }
    }

}
